Roofing Calculator
Find your roof
Enter your address and we'll use satellite imagery to measure your roof automatically.
Scanning roof
● AnalyzingOur AI is measuring your roof from satellite imagery...
Project details
Tell us about your roofing project to get an accurate estimate.
Get free quotes
Enter your contact info and licensed local roofers will reach out with competitive, no-obligation bids.
🔒 Your information is kept private and never shared with third parties.
How the Roofing Cost Calculator Works
Our calculator uses satellite mapping technology to measure your roof’s square footage directly from your address. There’s no need to climb up on your roof or guess at measurements — here’s how it works:
It takes less than a minute and there’s no obligation. Once you have your number, you can request a free in-person quote from a licensed California roofing contractor to confirm the details.
What Factors Affect Your Roof Replacement?
No two roofs are the same. Here are the key variables that will influence the scope of your project and what goes into any estimate.
Roof Size and Pitch
Roofing is measured per “square” — a 100-square-foot unit. The larger your roof, the more materials and labor are needed. Steep roofs also require additional safety equipment and take longer to complete.
Roofing Material
The material you choose is one of the most significant factors in any replacement project:
Tear-Off vs. Re-Roof
California code generally allows one layer of shingles over an existing layer. If your home already has two layers, a full tear-off is required before new material can be installed.
Decking Repairs
Once the old material is removed, your contractor may find damaged sheathing (plywood or OSB) beneath. Replacing rotted or weakened decking is a necessary part of a quality, long-lasting installation.
Local Permits
Most California cities and counties require a roofing permit for a full replacement. Permit requirements vary by jurisdiction, and a reputable contractor will pull the permit on your behalf.
Labor by Region
Labor requirements vary between a job in Los Angeles, Sacramento, or the Bay Area. Local building codes, access, and roof complexity all play a role in the scope of work.
Signs You Need a Roof Replacement (Not Just a Repair)
Not every roofing issue requires a full replacement. But if you’re seeing multiple warning signs, replacement is often the smarter long-term investment:
When in doubt, a professional inspection will tell you whether repair or replacement makes more sense — and most reputable contractors offer free inspections.
Why Use an Online Roofing Estimator?
Getting an instant estimate before you call a contractor puts you in a much stronger position. Here’s why California homeowners use our tool first:
Go in prepared. Understanding the scope of your project ahead of time means you know what questions to ask and what to expect when a contractor arrives.
Compare bids with confidence. When you have a baseline estimate, you can evaluate contractor proposals intelligently — not just take the first number you’re given.
No pressure, no commitment. Our calculator gives you real information without requiring a phone call, a form fill, or a visit from a salesperson.
Save time. Get a realistic estimate in under a minute — without scheduling appointments or waiting for callbacks.
How to Get an Accurate Roofing Quote in California
The calculator gives you a solid starting point. Here’s how to move from estimate to a confirmed quote:
